body{font-family: Verdana; font-size: 14px; margin: 0;}

#container {margin: 0 auto; width: 900px;}
#head {height: 100px;background: aqua;margin-bottom: 5px;}
#menu {height: 30px;background: blue;margin-bottom: 5px;}
#mainContent{height: 500px;margin-bottom: 5px;}
#sidebar{float: left;width: 200px;height: 500px;background: navy;}
#content{float: right;width: 695px;height: 500px;background: blue;}